Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8815147 | Cold die steel excellent in characteristic of suppressing dimensional change | Kunichika Kubota, Shugo Komatsubara | 2014-08-26 |
| 6763593 | Razor blade material and a razor blade | Yasushi Tamura | 2004-07-20 |
| 6663726 | High-hardness prehardened steel for cold working with excellent machinability, die made of the same for cold working, and method of working the same | Yukio Abe, Yasushi Tamura, Yoshihiro Kada | 2003-12-16 |
| 6413329 | High strength steel for dies with excellent machinability | Yasushi Tamura, Yoshiyuki Murakawa | 2002-07-02 |